Zip line courses can consist of one or many cables that are suspended between trees or man-made structures. Participants (often referred to as “zippers”), are suspended from a pulley that moves across the cable, propelled by gravity. The cables are mounted descending from a higher to lower point. The amount of incline as well as the weight of the zipper determines the speed at which the participant travels from point to point.

Zip line courses can be designed purely for speed (adrenaline rush), while others are designed to allow zippers to enjoy the natural surroundings such as forest, jungle or waterfalls (often referred to as canopy tours). While others employ elements of both.

Professional zip line courses offer mandatory training sessions for participants. During the training sessions guides teach participants, proper form, how to take off from a platform, how to land on a platform and how to break/slow down. Depending on the complexity and difficulty of the course, training sessions can take anywhere form a few minutes to a half-hour.

Since courses are built to deliver varying experiences, it is a good idea to research courses to ensure you get the kind of experience that is most appealing to you. It is also important to keep in mind that courses have different age, health and weight requirements, so check with the tour provider before heading out for your adventure.

Be sure you are provided with and wear a helmet, leather/suede gloves (if using your hand to break/slow down) and that the course has a good safety record. Professional US zip line courses often have double cables, ensuring that if one cable is compromised, a second will continue to carry the zipper. It is also important to adhere to all safety requirements given during the training session and to advise guides of any health issues.

Some travel insurers may consider zip lining a dangerous activity, and may demand special coverage with added cost.

Ziplining generally is regarded as a safe activity. Injuries are rare, and fatal accidents even less common. Ziplining is possible for persons of all ages and those with most disabilities.